Test on PHP 8.3 & 8.4

[GrahamCampbell]

No description provided.

[rcambien]

Tests failed due to dev requirements.

The range of PHP version is so large, this version constraint doesn't make any sense, that's why i never merge #53

I think the best solution is to remove all dev requirements and add composer require ... commands in a workflow step and let composer choose the best version for the current environment.

Or replace all dev requirements version constraints with a * but i don't know if it will solve the problem.

What do you think ?

[GrahamCampbell]

I think it would be reasonable to drop older PHP versions, and only support PHP 7.4 and up. I feel that it's more important that we validate compatibility with the newer PHP versions than maintain support for super old versions. The older versions of this package still remain available for those who can't upgrade.

[rcambien]

Fixed in #56